From: Haibo Chen <haibo.chen@xxxxxxx> During system PM, if no wakeup requirement, disable transceiver to save power. Signed-off-by: Haibo Chen <haibo.chen@xxxxxxx> --- drivers/net/can/flexcan/flexcan-core.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/can/flexcan/flexcan-core.c b/drivers/net/can/flexcan/flexcan-core.c index b347a1c93536..74f3137295fb 100644 --- a/drivers/net/can/flexcan/flexcan-core.c +++ b/drivers/net/can/flexcan/flexcan-core.c @@ -2292,6 +2292,7 @@ static int __maybe_unused flexcan_suspend(struct device *device) return err; flexcan_chip_interrupts_disable(dev); + flexcan_transceiver_disable(priv); err = pinctrl_pm_select_sleep_state(device); if (err) @@ -2325,6 +2326,10 @@ static int __maybe_unused flexcan_resume(struct device *device) if (err) return err; + err = flexcan_transceiver_enable(priv); + if (err) + return err; + err = flexcan_chip_start(dev); if (err) return err; -- 2.34.1
